Flickr has a new thing now where you just add /show after the url, and it goes automatically to this great slide show. This is wonderful if you want to give out a link, post it on a forum, blog, etc., and the images are full screen.
I imagine it can't be that hard to do. Take a look at it. I think it would be a super addition to pbase.
Example:
http://www.flickr.com/photos/ylpnotes/sets/72157600008335379/show
Suchin